ATOC 184 Lecture Notes - Lecture 2: Thermal Radiation, Goldilocks Principle, Northern Hemisphere
16 Jan 2019
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Jan 10 2019: lecture 2: properties of the atmosphere. Heat is the amount of energy we put into a material. Temperature is a measure of the average speed of molecule movement in a substance. This movement is faster for higher temperatures, slower for lower. Molecules in the object are not vibrating, object has no temperature. Fahrenheit was developed on the basis of human comfort. 0-100 f is a scale that human can survive. Celsius based on the phases of water. Absolute zero = 0 k = -459. 67 deg f = -273. 15 deg c. Temperatures are warmer at equator than near the poles. Molecular kinetic energy (heat) will transfer from faster moving molecules to slower moving molecules. Anything that has a temperature emits radiation. Energy emitted by matter a electromagnetic waves due to the pool of thermal energy. Transfer of heat by the movement of fluids (air molecules) The primary form of heat on earth is from radiation from the sun.
